2024-07-30 Grease Pencil Module Meeting

[filedescriptor]

Date/Time: 2024-07-30T14:00:00Z
Link: https://meet.google.com/xxo-tyin-rem
Attendees:

• Amélie Fondevilla (LFS, Developer)
• Antonio Vazquez (Developer)
• Casey Bianco-Davis (Developer)
• Falk David (Blender developer)
• Iliya Katueshenock (Developer)
• Lukas Tönne (Blender)
• Samuel Bernou (ADV studio, python dev)
• Wu Yiming (Blender)

Topics

• Development updates
• Discussions

Meeting Notes

• Development updates
  • Curve Editing
    • Edit mode overlays for all curve types (Casey)
    • Rendering different grease pencil curve types (evaluated geometry) (Casey)
    • Initial handle selection (Casey)
    • Initial transform support (Casey)
    • Set Curve Resolution operator (Falk)
  • Trace Image operator (Lukas)
  • Duplicate active keys operator (Pratik)
  • Line Art baking operators (Yiming)
  • Python API
    • Frame, drawing and drawing attributes (Falk, Sietse)
    • Drawing API functions
  • Geometry Nodes
    • Jacques worked on the final steps of the integration with geometry nodes.
    • There is a “Curves to Grease Pencil” and a “Grease Pencil to Curves” node.
    • It’s now possible to create grease pencil completely from scratch within the modifier (even layers).
  • Many bug fixes

Show all commits

• Fix: GPv3: Crash switching to weight paint mode by Falk David
• Fix #124906: GPv3: Eraser crash when pressure is enabled by Pratik Borhade
• GPv3: Edit mode overlay curve lines and bézier handles. by casey bianco-davis
• GPv3: Render evaluated geometry by Casey Bianco-Davis
• Fix: GPv3: Copy ShaderFX/Materials to selected by Falk David
• Fix: GPv3: Use of legacy object type in shaderfx_add by Falk David
• Fix: GPv3: Use correct temporary eraser size by Falk David
• Fix: GPv3: Duplicate previous key using auto key by Falk David
• GPv3: Rename active_layer to active by Falk David
• GPv3: Python error after active_layer renaming by Pratik Borhade
• Fix: GPv3: Uninitialized placement_plane_ in DrawingPlacement by Falk David
• GPv3: Rename active_group to active by Pratik Borhade
• Fix: GPv3: Crash when changing the active layer by Falk David
• GPv3: Add “Set Curve Resolution” operator by Falk David
• GPv3: Python API: Add missing functions to BlendDataGreasePencilsV3 by Falk David
• Fix: GPv3: Lineart: Conversion from 4.2 not working correctly by Falk David
• GPv3: Trace image operator by Lukas Tönne
• GPv3: Fill tool: Hide extension circles when adding lines by Lukas Tönne
• GPv3: Bezier handles selection in pick operator by Casey Bianco-Davis
• GPv3: Initial transform operator support for bezier handles by Casey Bianco-Davis
• GPv3: Duplicate active keys operator by Pratik Borhade
• GPv3: LineArt: Baking operators by YimingWu
• GPv3: Python API for frame, drawing and drawing attributes by Falk David
• GPv3: Python: Add drawing API functions by Falk David
• GPv3: Python: Add curve_offsets API by Falk David
• Grease Pencil: Remove legacy modifiers by Falk David
• Fix: GPv3: Crash in realize instances node by Falk David

• Work in progress
  • Casey is looking into more curve stuff
  • Falk worked on the high level python API (ready for testing)
  • Falk also started to work on vertex paint mode
  • The IO operators are done, but there is a pending library issue that needs to be fixed before we can land them
• Falk did a demo of the current curve editing workflow.
• Antonio: Thinks that it might be good to have a separate theme option for vertex size and or color.
  • There might be a bug where we don’t use the right theme setting
• Samuel: What about the missing tools?
  • Falk: The brush asset team is looking into adding back the eraser and fill bucket tools.
• Casey: Discussion about boolean eraser and lasso trim.

Next Meeting

• Time/Date: 2024-08-12T14:00:00Z